Restaurant knife



FIG. 1 is a front, top and left side perspective view of a restaurantknife showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof (which the right sideelevational view is a mirror image of); and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for a restaurant knife, as shown and described.